729647025 has 48 divisors (see below), whose sum is σ = 1293935040. Its totient is φ = 361670400.

The previous prime is 729647011. The next prime is 729647033. The reversal of 729647025 is 520746927.

It is not a de Polignac number, because 729647025 - 2⁶ = 729646961 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 70695 + ... + 80355.

It is an arithmetic number, because the mean of its divisors is an integer number (26956980).

Almost surely, 2^729647025 is an apocalyptic number.

729647025 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

729647025 is a deficient number, since it is larger than the sum of its proper divisors (564288015).

729647025 is a wasteful number, since it uses less digits than its factorization.

729647025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9746 (or 9741 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 42.

The square root of 729647025 is about 27011.9792869756. The cubic root of 729647025 is about 900.2661866962.

The spelling of 729647025 in words is "seven hundred twenty-nine million, six hundred forty-seven thousand, twenty-five".